Finding the Fourth Proportional to 2,067.92, 2,852.52 and 1,396.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.92 : 2,852.52 = 1,396.88 : x
2. Step 2: Convert to fraction form
   2,067.92/2,852.52 = 1,396.88/x
3. Step 3: Cross multiply
   2,067.92x = 2,852.52 × 1,396.88
4. Step 4: Simplify right side
   2,067.92x = 3,984,628.14
5. Step 5: Solve for x
   x = 3,984,628.14/2,067.92
6. Step 6: Final answer
   x = 1,926.88